When connecting to my company's FTP server from outside the LAN, when I use Quick Look, it only works on the first file attempted. Every other attempt does not work. CyberDuck appears to download the file, but no Quick Look window opens. File type does make a difference. When I quit and reopen CyberDuck, the first file attempted works as intended, but none thereafter.
This is not fully resolved. See uploaded video QuickLook2.mov. As far as I can tell, when you expand folders and use Quick Look, there are no problems. However, when you double-click to go into a folder, then use Quick Look about five or more times, it will then begin to fail.
Jul 13 19:38:30 idefix Cyberduck: [main] WARN ch.cyberduck.ui.cocoa.quicklook.QuartzQuickLook - Do not reload data yet because datasource is not yet setup. Focus has probably changed to another application since